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Finding the Fourth Proportional to 110,055.20, 165,082.80 and 103,494.20

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Solution

The fourth proportional to 110,055.20, 165,082.80 and 103,494.20 is: 155,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,055.20 : 165,082.80 = 103,494.20 : x
  2. Step 2: Convert to fraction form
    110,055.20/165,082.80 = 103,494.20/x
  3. Step 3: Cross multiply
    110,055.20x = 165,082.80 × 103,494.20
  4. Step 4: Simplify right side
    110,055.20x = 17,085,112,319.76
  5. Step 5: Solve for x
    x = 17,085,112,319.76/110,055.20
  6. Step 6: Final answer
    x = 155,241.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.